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包力, 杨国华, 李邯鹏, 王炳辉, 杜珂, 黄三. 不锈钢烧结纤维毡外加粉体助剂过滤烟尘微粒[J]. 环境工程学报, 2013, 7(4): 1472-1476.
引用本文: 包力, 杨国华, 李邯鹏, 王炳辉, 杜珂, 黄三. 不锈钢烧结纤维毡外加粉体助剂过滤烟尘微粒[J]. 环境工程学报, 2013, 7(4): 1472-1476.
shu
Bao Li, Yang Guohua, Li Hanpeng, Wang Binghui, Du Ke, Huang San. Filtering soot particles by stainless steel sintered fiber felt combining with powder[J]. Chinese Journal of Environmental Engineering, 2013, 7(4): 1472-1476.
Citation: Bao Li, Yang Guohua, Li Hanpeng, Wang Binghui, Du Ke, Huang San. Filtering soot particles by stainless steel sintered fiber felt combining with powder[J]. Chinese Journal of Environmental Engineering, 2013, 7(4): 1472-1476.
shu

不锈钢烧结纤维毡外加粉体助剂过滤烟尘微粒

  • 1.

    宁波大学海运学院,宁波 315211

  • 基金项目:

    宁波市自然科学基金(2010A610088)

    浙江省新苗人才计划(2012R405037)

    宁波大学学科项目(012-C01550124300)

    宁波市服务型重点专业群(Sfwxzdzy200904)

  • 中图分类号: X513

Filtering soot particles by stainless steel sintered fiber felt combining with powder

  • 1.

    Maritime College, Ningbo University, Ningbo 315211, China

  • Fund Project:

  • 摘要: 为了解决不锈钢烧结纤维毡对柴油机微粒过滤效率不高及其黏附堵塞问题,提出了不锈钢烧结纤维毡外加粉体助剂过滤烟尘的新方法。用不同过滤精度(5~30 μm)的不锈钢烧结纤维毡片,覆盖不同厚度(0.5~3 mm)的粉体层,对由发烟剂燃烧产生的烟尘(D50 =0.183 μm)进行了过滤实验,用welas3000气溶胶粒径谱仪测试过滤前后的烟尘浓度,得到了不同情况下的过滤效率及分级效率。实验结果表明,粉体粒径、厚度、过滤气速及时间对过滤效率影响都很大,在滤速3 m/min、粉体粒径200~250目及厚度1.5 mm时,初始过滤效率高达95.746%,30 min后过滤效率上升到98.499%,300 min内过滤效率基本保持在98%以上。
    Abstract: In this study, powder additives were proposed to improve the low filtration efficiency and eliminate the unburnt oil particle adhesion that were found in the stainless steel sintered fiber felt removing exhaust soot particulates of diesel engine. By using a Welas 3000 aerosol granular size spectrometer to measure the particulate concentrations before and after the filtering process, experiments were performed using stainless steel sintered fiber felts with various filtering precisions (i.e., 5~30 μm) coated by powder additives layer with different thicknesses (i.e., 0.5~3 mm) to filter soot particles (D50 =0.183 μm) produced by smoke agent. Filtering efficiencies and classification characteristics under various circumstances reveal that the grain size and layer thickness of power additives, airflow velocity, and reaction times affect greatly the filter efficiency. With the airflow velocity of 3m/min, grain size of 200~250 mesh, and power layer thickness of 1.5 mm, the filter efficiency is initially up to 95.746% and then increases to 98.499% after 30 min. Again, high levels of filter efficiencies above 98% can generally maintain within 300 min.
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出版历程
  • 收稿日期:  2012-11-06
  • 刊出日期:  2013-04-09
包力, 杨国华, 李邯鹏, 王炳辉, 杜珂, 黄三. 不锈钢烧结纤维毡外加粉体助剂过滤烟尘微粒[J]. 环境工程学报, 2013, 7(4): 1472-1476.
引用本文: 包力, 杨国华, 李邯鹏, 王炳辉, 杜珂, 黄三. 不锈钢烧结纤维毡外加粉体助剂过滤烟尘微粒[J]. 环境工程学报, 2013, 7(4): 1472-1476.
shu
Bao Li, Yang Guohua, Li Hanpeng, Wang Binghui, Du Ke, Huang San. Filtering soot particles by stainless steel sintered fiber felt combining with powder[J]. Chinese Journal of Environmental Engineering, 2013, 7(4): 1472-1476.
Citation: Bao Li, Yang Guohua, Li Hanpeng, Wang Binghui, Du Ke, Huang San. Filtering soot particles by stainless steel sintered fiber felt combining with powder[J]. Chinese Journal of Environmental Engineering, 2013, 7(4): 1472-1476.
shu

不锈钢烧结纤维毡外加粉体助剂过滤烟尘微粒

  • 1. 宁波大学海运学院,宁波 315211
  • 收稿日期:  2012-11-06
基金项目:

宁波市自然科学基金(2010A610088)

浙江省新苗人才计划(2012R405037)

宁波大学学科项目(012-C01550124300)

宁波市服务型重点专业群(Sfwxzdzy200904)

摘要: 为了解决不锈钢烧结纤维毡对柴油机微粒过滤效率不高及其黏附堵塞问题,提出了不锈钢烧结纤维毡外加粉体助剂过滤烟尘的新方法。用不同过滤精度(5~30 μm)的不锈钢烧结纤维毡片,覆盖不同厚度(0.5~3 mm)的粉体层,对由发烟剂燃烧产生的烟尘(D50 =0.183 μm)进行了过滤实验,用welas3000气溶胶粒径谱仪测试过滤前后的烟尘浓度,得到了不同情况下的过滤效率及分级效率。实验结果表明,粉体粒径、厚度、过滤气速及时间对过滤效率影响都很大,在滤速3 m/min、粉体粒径200~250目及厚度1.5 mm时,初始过滤效率高达95.746%,30 min后过滤效率上升到98.499%,300 min内过滤效率基本保持在98%以上。

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